Lock for cycles.



SM5., OFFICE.

Josemi-MICHAEL BARBETT. e'rro'sronm, omo, AssIGNor. or Two-Firms 'ro ADoLrH- Locxiron creme.

x1ra-927,927. i

' Bpecication of Letters Patent.

Patented-11115713, 19de.

Animation sied February 4, 1909. serial Ne. 475,996'.-

l of any kind, for the purposeof ,preventing 4able .bolt .ada een toY vthe machine from being ridden by unauthorized persons.

More particularly stated, my 'invention com rehends a lock mounted upon the 'framewor -of a bicycle and provided with a movroject throught the rocket whee -,`the bo t being so arranged vt at-whentin its normal position the bicycle can .not be used, the bolt beixgLwithdrawn ffrom the sprocket wheel by aid ot 'a key'carriedf by the operator. -Referenee' '1s to be had to the accompanying drawings ,forming a part of this specification, in which similar characters of reference indicate corresponding -parts in all the figures.

Figure 1 is a section through the lock andparts associated therewith, and is taken upon' the line 1--1 of Fig. 2, looking in the direc- .tion of the arrow; Fig. 2 is a vertical Section through the lock, upon the vline 2-2 'of Fig. 1, looking in the direction ofthe arrow; and Fig. 3 is a vertical section upon the line 3-3 of Fig. 1, looking in the direction of the arrow.

At ,4 is a cylindrical casing forming part' i of the framework of a bicycle and at 5,5-a

are the cranks. Connected rigidly with the casing 4 are tubular supports 6, 7 constituting parts of the framework. Also connected rigidly with the casing are two tubes 8 and resting upon the latter is a plate 9. At 10 4is 'shown a lock easing which, together with the plate 9, incloses various parts of the lock hereinafter described. A bolt is shown at 11 and-is provided with a cylindrical ortlon 13 which projects outwardly from t ecasing. The bolt 11 slidably engages a plate '12 whereby it is held in proper working relation to the other parts.l U v The bolt 11' is provided with a lug 14 1ntegral with it. A link 15 is connected with thls lug by aid of a pin 16, the link 15 being provided with an eye 18, and a spring 17 is. .connected with this eye. This spring is also connected vwith an eye 419 which is formed lnsideof the casing 10. A revoluble knob 20 is encircled by a ring 21 and is providedwithv akey-hole 22. Mounted upon the ring 21 is a dog 23. Y

The ring 21 is 'provided with a lug 2Ll, and` this lug is connected by -a pin 25 with the link 15. A lug 26 which is integral with the plate 9, projects slightly upwardI and serves as a limiting stop for the lug 24. A leafspring 27 is connected by rrivets 28 with the from, as indicated in Fig. 2.

with this step. A foot pin 31 extends 'plate 9 and extends obliquelyupward therep through the upper partof the casing 10 and is connected with the portion '30 of the spring 27. lVlienever the foot pin 31 is depressed, the leaf spring 27 is bent'down- Wardly so thatsthe step 29 is lowere Theknob 20 is provided with a reduced portion 20a which extends through the plate 9. The ring 21 and knob 20, 4considered as a unit, are journaled partly upon the plate 9 and partly upon the,upperportion of the casing 10, as will be understood from Fig. l

Mounted cent-rally upon the plate S) andextending downwardly therefrom is a boss 32. and disposed at the lower` end of thesame is a cross plate 33 which engages" the under side4 of the tubes 8. A- bolt 341extends through theplate 33 and into the boss 32. By turning the bolt 34' the plate 33 `is tightened against the under side ofthe tubes 8, and the plate 9 is therebysecured firmly upon these tubes. l

In order to remove the lock, the bolt 34 is loosened and the plate 33 turned slightly so that the lock casingand parts .immediately associated with it may be lifted directly upward... 3 5 is a key adapted to-itinto the .keyhole 22 for the purpose of turning the knob20 and ring 21.. l

The operation of my device is as follows:-I .l/Vhen the parts are in normal position, the spring 17, by pulling upon the hnk 15, turns the lug 24 into the position indicated in Fig. 41. W'hile in this position, the bolt 11 is outward so that the part 13 extends through the to assume this position` which coincides with .l theI position Wliichis the one assumed when -i in the key-hole 22 and turns the key in ay lil the bicycle is not in use. The operator desiring to use the machine, places the key ,gland inallylodges against the step 29; Athat 1s to'say, the key haring turned the knob a little distance, the dog 23 is unable to retrograde and the key may non' be withdrawn from' the lock, the parts beingheld tixedly'in position" because the dog' f lis lodged against the step 29. By this move ,l nient the boltll is-Witlidrawn from the sprocket wheel, as 'will be understood from the dotted lines in Fig. l. The machine is now ready for use. W'hen it is'V desired to ,ztigain lock the sprocket wheel, the operator merely places his foot upon the foot pin 3l and depresses the latter. ,doing this, he moves the leaf spring QT slightly downward "so thatthe'step 29 disengages the dog `rThis releases the ring 2l and enables the spring 17, nby pulling upon the link 1.5 (see Fig. l), to turn the ring,` 2l until the lug 24 engages the ,limiting stop 26 and thrusts the bolt l1 outward so that the part 13 of this bolt again extends through the sprocket Wheel and 'locks the machine. Having thus described my invention, I claim as new and desire to secure by Letters Patent:

l. In a lock for cycles, the combination of a casing, a bolt slidably mounted therein and adapted to engage a wheel or the like, a leaf spring,r mounted within said casing and provided with a step, a revoluble knob mounted Within said casing, a dog connected With said revoluble knob and'adaptcd to engage said step of said leaf spring, a bolt, mechanism connected With said bolt for actuating' n 'theysame, said mechanism being connected with said revolnble knob, a spring for holding said mechanism in a predetermined normal position, and means including a key for turning said revoluble knob so asfto enable said dog to engage said step.

p 2. In a lock for cycles, the combination of a casing, a bolt slidably mounted therein and adapted to engage a Wheel or the like, a link pirotally connected with said holt, a reroluble member mounted Within said casing' and pirotally connected With said link, a spring connected With said link and adapted to pull the same in a direction lateral to the general direction of the length of said link, a limiting stop for preventing rotation of saidrevoluble member beyond a prede termined point, means for enabling the operator to turn said revoluble member into a predetermined position for the purpose of increasing the tension of said spring' and of withdrawingsaid bolt from said wheel or the like, and means for holding' said revoluble member in said position intowliich it is thus turned, and mechanism controllable at will for releasing said revoluble member..

In a lock for cycles, the combination of a. casing, a bolt movable relatively theretoI and adapted to 'engage a wheeler the like, a link pivotally connected with said bolt, a revoluble member mounted Within said casing and provided with a lug, a pivot connecting vsaid lug and said link together, a limiting; stop for preventing' excessive travel of said lug and said link, a spring connected with said link for the purpose of drawingl the same toward said lug, said limiting stop being so located thatv when said lug lodges against it the pressure of said bolt through said link forces said lug* against said limitingr stop, means for turningr said revolublo member for the purpose of stretching said spring, and mechanism controllabl, at will for holding and releasingY said .revoluble member.

In testin'iony whereof I have signed lmy name to this specification vin the presence of two subscribing witnesses.

JOSEPH MICHAEL BARRETT.

Witnesses:

DANIEL WEEK, C. A. Gonnnsnr 

